> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blockscout.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Migrate from Etherscan
To get started immediately, see our[ blog post with simple migration instructions](https://www.blog.blockscout.com/how-to-migrate-your-etherscan-api-calls-to-blockscout/).
# Etherscan API Alternative — Migrate to Blockscout PRO API
> Same endpoint structure. More chains. Higher limits. Lower price. Migrate in minutes.
## Why Developers Are Switching
Etherscan has reduced free-tier API access for major chains including Base and Optimism. Developers building production applications need reliable, predictable API access — not surprise cutoffs.
Blockscout PRO API provides Etherscan-compatible endpoints across 100+ EVM chains with higher rate limits and more generous usage allowances at every pricing tier. Free-tier access is available on all supported chains with no restrictions.
## Side-by-Side Comparison
| Feature | Blockscout PRO API | Etherscan API |
| ---------------------- | ------------------ | -------------- |
| Free tier RPS | 5 | 3 |
| Free tier chains | All supported | Limited |
| \$49/mo RPS | 15 | 5 |
| \$49/mo credits/calls | 100M credits | 100K calls |
| \$199/mo RPS | 30 | 10 |
| \$199/mo credits/calls | 500M credits | 200K calls |
| Multichain access | Single API key | Per-chain keys |
| API keys per account | Up to 50 | Limited |
| Usage dashboard | Real-time | Basic |
At the \$49/mo tier, Blockscout's 100M monthly credits provide roughly 3× more throughput than Etherscan Lite's 100K daily calls.
## Migration Is a Base URL Swap
Both Etherscan V2 and Blockscout PRO API now use a unified multichain endpoint with a chain ID parameter. The APIs are structurally almost identical — migration is a base URL and key swap.
### Etherscan Route
```text theme={null}
https://api.etherscan.io/v2/api?chainid=1&module=account&action=balance&address=0x...&apikey=YOUR_ETHERSCAN_KEY
```
### Blockscout PRO API
```text theme={null}
https://api.blockscout.com/v2/api?chain_id=1&module=account&action=balance&address=0x...&apikey=proapi_YOUR_KEY
```
The only differences: `api.etherscan.io` → `api.blockscout.com`, `chainid` → `chain_id`, and your API key. Same modules, same actions, same parameters.
Blockscout also supports path-based routing as an alternative:
```text theme={null}
https://api.blockscout.com/1/api?module=account&action=balance&address=0x...&apikey=proapi_YOUR_KEY
```
### Chain IDs for Common Networks
| Chain | Chain ID | Etherscan Status |
| ---------------- | -------- | ------------------------------------ |
| Ethereum Mainnet | `1` | Available |
| OP Mainnet | `10` | Paid only |
| Base Mainnet | `8453` | Paid only |
| Arbitrum One | `42161` | Available |
| Scroll Mainnet | `534352` | Available |
| Soneium Mainnet | `1868` | Not available (Blockscout exclusive) |
| Ink Mainnet | `57073` | Not available (Blockscout exclusive) |
| MegaETH Mainnet | `4326` | Available |
| Immutable zkEVM | `13371` | Not available (Blockscout exclusive) |
| World Chain | `480` | Available |
| Celo Mainnet | `42220` | Available |
### Complete Supported Chains Comparison: Blockscout vs Etherscan
**Legend:** ✅ Supported · ❌ Not supported · ⚠️ Paid tier only (Etherscan)
**Bold** rows = exclusive to one explorer. \\
* Blockscout: 117 chains \
- Etherscan: 68 chains \\
* Shared: 20 chains.
| Chain Name | Chain ID | Blockscout Pro API | Etherscan API |
| :-------------------------------- | :---------- | :----------------: | :--------------: |
| Ethereum Mainnet | 1 | ✅ | ✅ |
| **Goerli Testnet** | 5 | **✅** | ❌ |
| OP Mainnet | 10 | ✅ | ⚠️ Paid only |
| **Rootstock Mainnet** | 30 | **✅** | ❌ |
| **Rootstock Testnet** | 31 | **✅** | ❌ |
| **XDC Mainnet** | 50 | ❌ | **✅** |
| **XDC Apothem Testnet** | 51 | ❌ | **✅** |
| **BNB Smart Chain Mainnet** | 56 | ❌ | **⚠️ Paid only** |
| **Ethereum Classic** | 61 | **✅** | ❌ |
| **ETC Mordor Testnet** | 63 | **✅** | ❌ |
| **Shibuya Testnet** | 81 | **✅** | ❌ |
| **Viction Mainnet** | 88 | **✅** | ❌ |
| **Viction Testnet** | 89 | **✅** | ❌ |
| **BNB Smart Chain Testnet** | 97 | ❌ | **⚠️ Paid only** |
| Gnosis | 100 | ✅ | ✅ |
| **Fuse Mainnet** | 122 | **✅** | ❌ |
| **Fuse Spark Testnet** | 123 | **✅** | ❌ |
| Unichain Mainnet | 130 | ✅ | ✅ |
| Polygon Mainnet | 137 | ✅ | ✅ |
| **Monad Mainnet** | 143 | ❌ | **✅** |
| **Sonic Mainnet** | 146 | ❌ | **✅** |
| **ShimmerEVM Mainnet** | 148 | **✅** | ❌ |
| **HashKey Chain Mainnet** | 177 | **✅** | ❌ |
| **BitTorrent Chain Mainnet** | 199 | ❌ | **✅** |
| **opBNB Mainnet** | 204 | ❌ | **✅** |
| **TAC Mainnet** | 239 | **✅** | ❌ |
| **Fraxtal Mainnet** | 252 | ❌ | **✅** |
| **zkSync Sepolia Testnet** | 300 | **✅** | ❌ |
| **Filecoin Mainnet** | 314 | **✅** | ❌ |
| **zkSync Era Mainnet** | 324 | **✅** | ❌ |
| **Shape Mainnet** | 360 | **✅** | ❌ |
| **OP Goerli Testnet** | 420 | **✅** | ❌ |
| World Chain Mainnet | 480 | ✅ | ✅ |
| **Blackfort Mainnet** | 488 | **✅** | ❌ |
| **Astar Mainnet** | 592 | **✅** | ❌ |
| **Redstone Mainnet** | 690 | **✅** | ❌ |
| **Matchain Mainnet** | 698 | **✅** | ❌ |
| **Social Network Testnet** | 749 | **✅** | ❌ |
| **Stable Mainnet** | 988 | ❌ | **✅** |
| **HyperEVM Mainnet** | 999 | ❌ | **✅** |
| **BitTorrent Chain Testnet** | 1029 | ❌ | **✅** |
| **ShimmerEVM Testnet** | 1073 | **✅** | ❌ |
| **IOTA EVM Testnet** | 1076 | **✅** | ❌ |
| **Lisk Mainnet** | 1135 | **✅** | ❌ |
| **Moonbeam Mainnet** | 1284 | ❌ | **✅** |
| **Moonriver Mainnet** | 1285 | ❌ | **✅** |
| **Moonbase Alpha Testnet** | 1287 | ❌ | **✅** |
| Unichain Sepolia Testnet | 1301 | ✅ | ✅ |
| **Story Aeneid Testnet** | 1315 | **✅** | ❌ |
| **Sei Testnet** | 1328 | ❌ | **✅** |
| **Sei Mainnet** | 1329 | ❌ | **✅** |
| **Story Mainnet** | 1514 | **✅** | ❌ |
| **Reya Network Mainnet** | 1729 | **✅** | ❌ |
| **PlayBlock Mainnet** | 1829 | **✅** | ❌ |
| **Soneium Mainnet** | 1868 | **✅** | ❌ |
| **LightLink Phoenix Mainnet** | 1890 | **✅** | ❌ |
| **LightLink Pegasus Testnet** | 1891 | **✅** | ❌ |
| **Swellchain Mainnet** | 1923 | ❌ | **✅** |
| **Swellchain Testnet** | 1924 | ❌ | **✅** |
| **Soneium Minato Testnet** | 1946 | **✅** | ❌ |
| **Stable Testnet** | 2201 | ❌ | **✅** |
| **KiteAI Mainnet** | 2365 | **✅** | ❌ |
| **KiteAI Mainnet (alt)** | 2366 | **✅** | ❌ |
| **KiteAI Testnet** | 2368 | **✅** | ❌ |
| **TAC St. Petersburg Testnet** | 2391 | **✅** | ❌ |
| **Fraxtal Hoodi Testnet** | 2523 | ❌ | **✅** |
| **Abstract Mainnet** | 2741 | ❌ | **✅** |
| **Nexus Staging Testnet** | 3941 | **✅** | ❌ |
| **Nexus Testnet** | 3945 | **✅** | ❌ |
| **Lisk Sepolia Testnet** | 4202 | **✅** | ❌ |
| MegaETH Mainnet | 4326 | ✅ | ✅ |
| **Memecore Mainnet** | 4352 | ❌ | **✅** |
| World Chain Sepolia Testnet | 4801 | ✅ | ✅ |
| **Blackfort Testnet** | 4888 | **✅** | ❌ |
| **Blackfort Mainnet (legacy)** | 4999 | **✅** | ❌ |
| **Mantle Mainnet** | 5000 | ❌ | **✅** |
| **Mantle Sepolia Testnet** | 5003 | ❌ | **✅** |
| **opBNB Testnet** | 5611 | ❌ | **✅** |
| MegaETH Testnet | 6342 | ✅ | ✅ |
| **MegaETH Testnet v2** | 6343 | **✅** | ❌ |
| **Everclear Testnet** | 6398 | **✅** | ❌ |
| **ZetaChain Mainnet** | 7000 | **✅** | ❌ |
| **ZetaChain Testnet** | 7001 | **✅** | ❌ |
| **Numine Mainnet** | 8021 | **✅** | ❌ |
| **Zenchain Mainnet** | 8408 | **✅** | ❌ |
| **Base Mainnet** | 8453 | ❌ | **⚠️ Paid only** |
| **IOTA EVM Mainnet** | 8822 | **✅** | ❌ |
| **Plasma Mainnet** | 9745 | ❌ | **✅** |
| **Plasma Testnet** | 9746 | ❌ | **✅** |
| **Monad Testnet** | 10143 | ❌ | **✅** |
| **Gnosis Chiado Testnet** | 10200 | **✅** | ❌ |
| **Tea Sepolia Testnet** | 10218 | **✅** | ❌ |
| **Shape Sepolia Testnet** | 11011 | **✅** | ❌ |
| **Abstract Sepolia Testnet** | 11124 | ❌ | **✅** |
| **Immutable zkEVM Mainnet** | 13371 | **✅** | ❌ |
| **Immutable zkEVM Testnet** | 13473 | **✅** | ❌ |
| **Sonic Testnet** | 14601 | ❌ | **✅** |
| **Ethereum Holesky Testnet** | 17000 | **✅** | ❌ |
| **Zilliqa EVM Mainnet** | 32769 | **✅** | ❌ |
| **Zilliqa EVM Testnet** | 33101 | **✅** | ❌ |
| **ApeChain Curtis Testnet** | 33111 | ❌ | **✅** |
| **ApeChain Mainnet** | 33139 | ❌ | **✅** |
| **Mode Mainnet** | 34443 | **✅** | ❌ |
| **EDU Chain Mainnet** | 41923 | **✅** | ❌ |
| Arbitrum One Mainnet | 42161 | ✅ | ✅ |
| **Arbitrum Nova Mainnet** | 42170 | **✅** | ❌ |
| Celo Mainnet | 42220 | ✅ | ✅ |
| **Etherlink Mainnet** | 42793 | **✅** | ❌ |
| **Avalanche Fuji Testnet** | 43113 | ❌ | **⚠️ Paid only** |
| **Avalanche C-Chain** | 43114 | ❌ | **⚠️ Paid only** |
| **Memecore Testnet** | 43521 | ❌ | **✅** |
| **Metabased Stratos Testnet** | 51010 | **✅** | ❌ |
| **Ink Mainnet** | 57073 | **✅** | ❌ |
| **Linea Sepolia Testnet** | 59141 | ❌ | **✅** |
| **Linea Mainnet** | 59144 | ❌ | **✅** |
| **ICB Testnet** | 73114 | **✅** | ❌ |
| **ICB Mainnet** | 73115 | **✅** | ❌ |
| **Polygon Amoy Testnet** | 80002 | ❌ | **✅** |
| **Berachain Bepolia Testnet** | 80069 | ❌ | **✅** |
| **Berachain Mainnet** | 80094 | ❌ | **✅** |
| **Blast Mainnet** | 81457 | ❌ | **✅** |
| **Base Goerli Testnet** | 84531 | **✅** | ❌ |
| Base Sepolia Testnet | 84532 | ✅ | ⚠️ Paid only |
| **Creditcoin Mainnet** | 102030 | **✅** | ❌ |
| **Creditcoin Testnet** | 102031 | **✅** | ❌ |
| **Creditcoin Devnet** | 102032 | **✅** | ❌ |
| **Etherlink Shadownet** | 127823 | **✅** | ❌ |
| **Etherlink Testnet** | 128123 | **✅** | ❌ |
| **Taiko Mainnet** | 167000 | ❌ | **✅** |
| **Taiko Hoodi** | 167013 | ❌ | **✅** |
| **Filecoin Calibration Testnet** | 314159 | **✅** | ❌ |
| **World Mobile Testnet** | 323432 | **✅** | ❌ |
| Arbitrum Sepolia Testnet | 421614 | ✅ | ✅ |
| Scroll Sepolia Testnet | 534351 | ✅ | ✅ |
| Scroll Mainnet | 534352 | ✅ | ✅ |
| Hoodi Testnet | 560048 | ✅ | ✅ |
| **Crosschain Testnet** | 612044 | **✅** | ❌ |
| **Crosschain Mainnet** | 612055 | **✅** | ❌ |
| **EDU Chain Testnet** | 656476 | **✅** | ❌ |
| **Gensyn Testnet** | 685685 | **✅** | ❌ |
| **Pyrope Chain Mainnet** | 695569 | **✅** | ❌ |
| **Katana Bokuto** | 737373 | ❌ | **✅** |
| **Katana Mainnet** | 747474 | ❌ | **✅** |
| **Ink Sepolia Testnet** | 763373 | **✅** | ❌ |
| **Arc Testnet** | 5042002 | **✅** | ❌ |
| **Kaigan Mainnet** | 5278000 | **✅** | ❌ |
| **Zora Mainnet** | 7777777 | **✅** | ❌ |
| **Fluence Mainnet** | 9999999 | **✅** | ❌ |
| **Spotlight Mainnet** | 10058111 | **✅** | ❌ |
| **Spotlight Sepolia Testnet** | 10058112 | **✅** | ❌ |
| Celo Sepolia Testnet | 11142220 | ✅ | ✅ |
| Ethereum Sepolia Testnet | 11155111 | ✅ | ✅ |
| OP Sepolia Testnet | 11155420 | ✅ | ⚠️ Paid only |
| **Citronus Testnet** | 34949059 | **✅** | ❌ |
| **Fluence Testnet** | 52164803 | **✅** | ❌ |
| **Reya Cronos Testnet** | 89346162 | **✅** | ❌ |
| **Blast Sepolia Testnet** | 168587773 | ❌ | **✅** |
| **Neon EVM Devnet** | 245022926 | **✅** | ❌ |
| **Neon EVM Mainnet** | 245022934 | **✅** | ❌ |
| **OP Interop Alpha 0 Testnet** | 420120000 | **✅** | ❌ |
| **OP Interop Alpha 1 Testnet** | 420120001 | **✅** | ❌ |
| **Polygon CDK Stavanger Testnet** | 686669576 | **✅** | ❌ |
| **Eden Testnet** | 3735928814 | **✅** | ❌ |
| **Arbitrum Blueberry Testnet** | 88153591557 | **✅** | ❌ |
## Migration Checklist
* Create a free account at [dev.blockscout.com](https://dev.blockscout.com)
* Generate your API key (format: `proapi_xxxxxxxx`)
* Look up chain IDs for your target networks
* Update your API client to use `https://api.blockscout.com/v2/api` with `chain_id` parameter
* Replace your Etherscan API key with your Blockscout PRO API key
* Test core endpoints (account balance, transaction list, contract ABI)
* Monitor usage and credits in the [developer portal dashboard](https://dev.blockscout.com)
## Additional Blockscout feature set
An itemized list of over 60 features and views available on Blockscout that are not available on Optimistic Etherscan is [available here](https://docs.google.com/spreadsheets/d/1HGw9bh5Iq3xBZlrnrwVOzD_0844zt7PPakkuxVsiS1g/edit?usp=sharing).
* **DAppscout** DApp marketplace providing dapp discovery and interaction features.
* **BENS in addition to ENS support, protocols can submit their subgraphs to be supported. Blockscout allows multiple protocols to co-exist within a single network.**
* **Ads and banner control** - Ability to add, remove and curate your own ads/banners
* **Public tagging -** a central microservice allows tags enabled on mainnet to be shown on other chains. This is especially useful for malicious address display.
* **Vera and BytecodeDB Bytecode** - works for verification info on multiple chains
* **Roadmap, research and rollup-specific features**
* Rollup-specific feature support (e.g. Fault proofs)
* DA support (e.g. [Celestia](https://github.com/blockscout/blockscout/pull/10199))
## API Differences
The following details endpoint differences between the Optimistic Etherscan and Blockscout Optimism instances. Endpoints vary slightly for different chains.
### \\
**1. Account/Address Endpoints**
`module=account`
| | Blockscout | Etherscan | Purpose |
| :--------------------------- | :--------- | :-------- | :------------------------------------------------------ |
| `action=eth_get_balance` | ✅ | ❌ | Mimics Ethereum JSON RPC's eth\_getBalance |
| `action=balance` | ✅ | ✅ | Get Ether Balance for Single Address |
| `action=balancemulti` | ✅ | ✅ | Get Ether Balance for Multiple Addresses |
| `action=pendingtxlist` | ✅ | ❌ | Get Pending Transactions by Address |
| `action=txlist` | ✅ | ✅ | Get Normal Transactions by Address |
| `action=txlistinternal` | ✅ | ✅ | Get Internal Transactions by Address |
| `action=tokentx` | ✅ | ✅ | Get ERC20 Token Transfers |
| `action=tokennfttx` | ✅ | ✅ | Get ERC721 Token Transfers |
| `action=token1155tx` | ✅ | ✅ | Get ERC1155 Token Transfers |
| `action=token404tx` | ✅ | ❌ | Get ERC-404 token transfer events by address |
| `action=tokenbalance` | ✅ | ❌ | Get Token Balance for Address |
| `action=tokenlist` | ✅ | ❌ | Get list of tokens owned by address |
| `action=getminedblocks` | ✅ | ✅ | Get list of blocks mined by address |
| `action=listaccounts` | ✅ | ❌ | Get a list of accounts and their balances |
| `action=txsBeaconWithdrawal` | ❌ | ✅ | Get Beacon Chain Withdrawals by Address and Block Range |
| `action=balancehistory` | ❌ | ✅ (PRO) | Get Historical Ether Balance for an Address By BlockNo |
### **2. Contract Endpoints**
### `module=contract`
| | Blockscout | Etherscan | Purpose |
| :------------------------------ | :--------- | :-------- | :-------------------------------------------------------------- |
| `action=listcontracts` | ✅ | ❌ | Get list of any deployed contract |
| `action=getabi` | ✅ | ✅ | Get Contract ABI for verified contracts |
| `action=getsourcecode` | ✅ | ✅ | Get contract source code for a verified contract |
| `action=getcontractcreation` | ✅ | ❌ | Get contract creator address hash and creation transaction hash |
| `action=verify` | ✅ | ❌ | Verify Contract with Source Code |
| `action=verifysourcecode` | ✅ | ✅ | Verify Contract with JSON file |
| `action=checkverifystatus` | ✅ | ✅ | Check Verification Status |
| `action=verifyproxycontract` | ✅ | ✅ | Get Internal Transactions by Address |
| `action=checkproxyverification` | ✅ | ✅ | Get ERC20 Token Transfers |
| `action=verify_via_scourcify` | ✅ | ❌ | Verify a contract through |
| Sourcify | | | |
| `action=verify_vyper_contract` | ✅ | ❌ | Verify a Vyper contract |
### **3. Transaction Endpoints**
### `module=transaction`
| | Blockscout | Etherscan | Purpose |
| :-------------------------- | :--------- | :-------- | :------------------------------------------------------------ |
| `action=gettxinfo` | ✅ | ❌ | Get Transaction info including block number, sender, gas, +++ |
| `action=gettxreceiptstatus` | ✅ | ✅ | Get Transaction Receipt Status |
| `action=getstatus` | ✅ | ✅ | Get Transaction Execution Status |
### **4. Block Endpoints**
**module=block**
| | Blockscout | Etherscan | Purpose |
| :------------------------------------------- | :--------- | :-------- | :------------------------------------------------------------- |
| `action=getblockreward` | ✅ | ✅ | Get Block Rewards |
| `action=getblockcountdown` | ✅ | ✅ | Get Block Countdown |
| `action=getblocknobytime` | ✅ | ✅ | Get Block Number by Time |
| `action=eth_block_number` | ✅ | ❌ | Mimics Ethereum JSON RPC's eth\_blockNumber. |
|
`action=dailyavgblocksize` | ❌ | ✅ (PRO) | Get Daily Average Block Size |
| `action=dailyblkcount` | ❌ | ✅ (PRO) | Get Daily Block Count and Rewards |
| `action=dailyblockrewards` | ❌ | ✅ (PRO) | Get Daily Block Rewards |
| `action=dailyavgblocktime` | ❌ | ✅ (PRO) | Get Daily Average Time for A Block to be Included in the chain |
| `action=dailyuncleblkcount` | ❌ | ✅ (PRO) | Get Daily Uncle Block Count and Rewards |
### **5. Token Endpoints**
### `module=token`
Note other endpoints contain token specific information including `module=stats` and `module=account`.
| | Blockscout | Etherscan | Purpose |
| :---------------------- | :--------- | :-------- | :---------------------------- |
| action=getToken | ✅ | ❌ | Get Token Information |
| action=getTokenHolders | ✅ | ❌ | Get Token Holders |
| action=bridgedtokenlist | ✅ | ❌ | Get Bridged Tokens |
| action=tokenholderlist | ❌ | ✅ (PRO) | Get Token Holders |
| action=tokenholdercount | ❌ | ✅ (PRO) | Number of ERC20 token holders |
| action=tokeninfo | ❌ | ✅ (PRO) | Token project info |
### **6. Logs/Events Endpoints**
### `module=logs`
Both Etherscan and Blockscout use the getLogs endpoint which includes enhanced filtering capabilities
* ✅ `action=getLogs` - Get Event Logs by Address/Topics/Block Range
### **7. Proxy/ETH RPC Endpoints**
Etherscan uses the Proxy module `module=proxy` to retrieve standard Ethereum JSON-RPC methods.
For Blockscout, send post requests to\
**api.blockscout.com//json-rpc**
The following methods are supported:
* eth\_blockNumber
* eth\_getBalance
* eth\_getLogs
* eth\_gasPrice
* eth\_getTransactionByHash
* eth\_getTransactionReceipt
* eth\_chainId
* eth\_maxPriorityFeePerGas
* eth\_getTransactionCount
* eth\_getCode
* eth\_getStorageAt
* eth\_estimateGas
* eth\_getBlockByNumber
* eth\_getBlockByHash
* eth\_sendRawTransaction
* eth\_call
### **8. Stats/Network Information**
### `module=stats`
In addition to these stats, Blockscout provides general chain stats via the [REST API](/devs/apis/rest).
| | Blockscout | Etherscan | Purpose |
| :-------------------- | :--------- | :-------- | :-------------------------------------------------------------------------------------------------------------------------- |
| tokensupply | ✅ | ✅ | Get Token Information |
| ethsupplyexchange | ✅ | ❌ | total supply in Wei from exchange |
| ethsupply | ✅ | ✅ | Get total supply in Wei from DB |
| ethsupply2 | ❌ | ✅ | Get amount of Ether in circulation, ETH2 Staking rewards, EIP1559 burnt fees, and total withdrawn ETH from the beacon chain |
| coinsupply | ✅ | ❌ | Get total coin supply from DB minus burnt number |
| ethprice | ✅ | ✅ | Get latest price of native coin in USD and BTC |
| coinprice | ✅ | ❌ | Get latest price of native coin in USD and BTC in more general format |
| totalfees | ✅ | ❌ | Get total transaction fees in Wei paid by users to validators per day |
| chainsize | ❌ | ✅ | Get the size of the Ethereum blockchain, in bytes, over a date range. |
| nodecount | ❌ | ✅ (PRO) | Get total number of discoverable Ethereum nodes |
| dailytxnfee | ❌ | ✅ (PRO) | Get Daily Network Transaction Fee |
| dailynewaddress | ❌ | ✅ (PRO) | Get Daily New Address Count |
| dailynetutilization | ❌ | ✅ (PRO) | Get Daily Network Utilization |
| dailyavghashrate | ❌ | ✅ (PRO) | Get Daily Average Network Hash Rate |
| dailytx | ❌ | ✅ (PRO) | Get Daily Transaction Count |
| dailyavgnetdifficulty | ❌ | ✅ (PRO) | Get Daily Average Network Difficulty |
| ethdailyprice | ❌ | ✅ (PRO) | Get Ether Historical Price |
### **9. Gas Tracking**
**Etherscan Gas Tracker** (`module=gastracker`)
* ✅ `action=gasoracle` - Get Gas Oracle
* ✅ `action=gasestimate` - Get Gas Estimate
**Blockscout**
* ✅ Gas information integrated into transaction and block data
## Supported Modules
Blockscout supports the core Etherscan-compatible modules:
* **`module=account`** — Balances, transaction lists, token transfers, internal transactions (plus Blockscout extras: `eth_get_balance`, `pendingtxlist`, `tokenbalance`, `tokenlist`, `listaccounts`)
* **`module=contract`** — ABI retrieval, source code, contract verification (plus: `listcontracts`, `getcontractcreation`, Vyper & Sourcify verification)
* **`module=transaction`** — Transaction status, receipt status (plus: `gettxinfo`)
* **`module=logs`** — Event logs by address, topics, and block range
* **`module=token`** — Token info, holder lists
* **`module=stats`** — Chain statistics, token supply, coin price
* **`module=block`** — Block rewards, countdown, block number by time
* **`module=gastracker`** — Gas oracle, gas estimates
## REST API (Beyond Etherscan Compatibility)
The PRO API also exposes Blockscout's modern REST API at:
```
https://api.blockscout.com/{chain_id}/api/v2/{endpoint}?apikey=proapi_YOUR_KEY
```
This provides capabilities not available through the Etherscan-compatible interface, including enriched address metadata, decoded transaction data, NFT details, smart contract read/write, and chain health monitoring.
## ETH RPC API
For standard Ethereum JSON-RPC methods, send POST requests to:
```
https://api.blockscout.com/{chain_id}/json-rpc
```
With your API key in the `authorization` header:
```bash theme={null}
curl -H "content-type: application/json" \
-H "authorization: Bearer proapi_YOUR_KEY" \
-X POST \
--data '{"id":0,"jsonrpc":"2.0","method":"eth_blockNumber","params":[]}' \
https://api.blockscout.com/10/json-rpc
```
Supported methods include `eth_blockNumber`, `eth_getBalance`, `eth_getLogs`, `eth_gasPrice`, `eth_getTransactionByHash`, `eth_getTransactionReceipt`, `eth_call`, `eth_estimateGas`, `eth_getBlockByNumber`, `eth_getBlockByHash`, `eth_sendRawTransaction`, and more.
## Common Migration Patterns
### JavaScript / Node.js
```javascript theme={null}
// Before (Etherscan V2)
const api = axios.create({
baseURL: "https://api.etherscan.io/v2/api",
params: { chainid: 1, apikey: process.env.ETHERSCAN_KEY }
});
// After (Blockscout PRO API — same structure, more chains, higher limits)
const BLOCKSCOUT_KEY = process.env.BLOCKSCOUT_KEY;
async function query(chainId, module, action, params = {}) {
const resp = await axios.get("https://api.blockscout.com/v2/api", {
params: {
chain_id: chainId,
module,
action,
apikey: BLOCKSCOUT_KEY,
...params
}
});
return resp.data;
}
// Query Ethereum (chain_id=1)
const ethBalance = await query(1, "account", "balance", { address: "0x..." });
// Query Base (chain_id=8453) — same function, different chain_id
const baseBalance = await query(8453, "account", "balance", { address: "0x..." });
```
### Python
```python theme={null}
import requests
# Before (Etherscan V2)
BASE_URL = "https://api.etherscan.io/v2/api"
API_KEY = os.environ["ETHERSCAN_KEY"]
resp = requests.get(BASE_URL, params={
"chainid": 1, "module": "account", "action": "balance",
"address": addr, "apikey": API_KEY
})
# After (Blockscout PRO API)
BLOCKSCOUT_KEY = os.environ["BLOCKSCOUT_KEY"]
def query(chain_id, module, action, **params):
resp = requests.get("https://api.blockscout.com/v2/api", params={
"chain_id": chain_id,
"module": module,
"action": action,
"apikey": BLOCKSCOUT_KEY,
**params
})
return resp.json()
# Ethereum
eth_balance = query(1, "account", "balance", address="0x...")
# Optimism (chain_id=10)
op_txns = query(10, "account", "txlist", address="0x...", sort="desc")
```
### Multichain Setup
```javascript theme={null}
// Both Etherscan V2 and Blockscout PRO API use the same pattern:
// unified base URL + chain ID. The switch is trivial.
const CHAINS = {
ethereum: 1,
optimism: 10,
base: 8453,
arbitrum: 42161,
scroll: 534352,
soneium: 1868, // Blockscout exclusive
ink: 57073, // Blockscout exclusive
};
async function getBalance(chainName, address) {
const chainId = CHAINS[chainName];
const res = await fetch(
`https://api.blockscout.com/v2/api?chain_id=${chainId}&module=account&action=balance&address=${address}&apikey=${API_KEY}`
);
return res.json();
}
```
## Framework Compatibility
Blockscout works with the tools you already use:
* **Ethers.js** — [ethers.org provider docs](https://docs.ethers.org/v6/api/providers/thirdparty/#providers-blockscout)
* **Hardhat** — [@ericxstone/hardhat-blockscout-verify](https://www.npmjs.com/package/@ericxstone/hardhat-blockscout-verify)
* **Foundry** — [Foundry verification guide](https://docs.blockscout.com/devs/verification/foundry-verification)
* **Remix** — Direct deployment and verification support
## Beyond Etherscan Compatibility
Blockscout also provides a modern REST API with capabilities not available through Etherscan-compatible endpoints, including smart contract read/write interactions, advanced token metadata, NFT details, and chain health monitoring.
**→ [REST API Documentation](https://docs.blockscout.com/devs/apis)**
## Start Free, Scale When Ready
No credit card. No chain restrictions. No surprise cutoffs.
**→ [Get Your API Key](https://dev.blockscout.com)**